//
//  FriendsViewController.m
//  XMPP
//
//  Created by  江志磊 on 15-3-6.
//  Copyright (c) 2015年 江 志磊. All rights reserved.
//

#import "FriendsViewController.h"
#import "QFXmppManager.h"
#import "UserModel.h" //用户的数据模型
#import "MessageViewController.h"

@interface FriendsViewController ()
{
    //用于存储好友信息，一个好友对应一个UserModel的对象，默认好友为自己
    NSMutableArray *_userArray;
}
@end

@implementation FriendsViewController

- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.navigationItem.title = @"好友列表";
    _userArray  =[[NSMutableArray alloc] init];
    //登录之初，服务器已经把当前账号的好友信息返回给客户端,QFXmppManager 将好友列表信息存储在数组中返回给上层
    [[QFXmppManager shareInstance] getAllFriends:^(NSArray *cb) {
        //cb 中存储的是UserModel的对象
        [_userArray removeAllObjects];
        //将cb中所有的数据添加到_userArray
        [_userArray addObjectsFromArray:cb];
        //block为异步调用，所以需要刷新视图
        [self.tableView reloadData];
    }];
    //注册一个UITableViewCell
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
    //[self.tableView registerNib:(UINib *) forCellReuseIdentifier:(NSString *)]
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
//#warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
//#warning Incomplete method implementation.
    // Return the number of rows in the section.
    return _userArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
    // Configure the cell...
    UserModel *model = _userArray[indexPath.row];
    //显示好友的用户名
    cell.textLabel.text = model.jid;
    return cell;
}

//选中某一个好友后，跳转到下级界面，实现向该好友发送消息
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    UserModel *model = _userArray[indexPath.row];
    MessageViewController *msg = [[MessageViewController alloc] init];
    msg.currentModel = model;
    [self.navigationController pushViewController:msg animated:YES];
}

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the specified item to be editable.
    return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    } else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
*/

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end
